air-conditioning

Car air conditioning does not cool, what should we do?

Summer has arrived, and air conditioning has become an indispensable configuration when driving. However, many drivers and friends will find that the air conditioner is not so cool during the driving process, which affects the ride experience.
Why the air conditioner is suddenly not cooling? Some owners can’t solve the problem with the addition of refrigerant. When meeting this situation, I think the following equipment should be checked.

When the air conditioning refrigeration effect is poor and the cold air blown out is less, please first check the air conditioning filter. Most of the models’ air-conditioning filter elements are arranged in the co-pilot armrest box. The four air-conditioner cartridges need to be removed to remove the air-conditioning filter element, and the lower part of the front windshield is placed in the engine compartment near the co-pilot side. If the air conditioning filter is severely blocked, it needs to be replaced. If there is too much dust on the surface, you can use compressed air to blow off the dust.

If the air conditioning is poorly cooled because the condenser surface is dirty, the condenser needs to be cleaned. The plot of the condenser generally uses a high-pressure water gun, that is, a high-pressure water gun for washing the car. Since the heat-dissipating material of the condenser is soft in the material of the aluminum material, so the special care should be taken when cleaning the surface of the condenser:

First, please pay attention to the pressure of the water gun not to be too large, and the water column should not be too thin;

The second is to pay attention to the spray angle. The angle of the condenser fin should be observed first so that the spray angle is consistent with the tilt angle of the fin. Remember the above two points, otherwise, the radiator will be damaged, and the consequences will not be worth the candle.

Third, check the refrigerant leakage and the operation of components such as compressors;

The inspection of refrigerant leakage is also very simple. First observe the pipe joints, especially the refrigerant leakage between the rubber pipe and the metal pipe (can be checked by the foam method), and check whether the rubber pipe is aging or cracked. It is also prone to refrigerant leakage. Of course, the most accurate method is to use the fluorescence method to charge the phosphor into the piping of the refrigeration system. Press the A/C switch to start the refrigeration cycle and observe with the UV lamp. If there is a leak, the phosphor will be lighting under the action of ultraviolet. Lights under the action. It is found that the refrigerant leakage must be rectified and refilled with refrigerant, otherwise, it is a waste of money.

Besides, just use the observation method to inspect the compressor and the cooling fan, the A/C switch can be turned on to observe whether the compressor is sucking or not. Also, when the vehicle water temperature reaches 90 °C or higher, whether the cooling fan is sucked or not, all these checks are relatively simple.

Summary: Driving in the summer, air conditioning system work is very important, so when the air conditioning of your car is not cooling or in poor cooling effect, please do not panic, and just follow the above steps to check, then find faults in time to eliminate, and ensure air conditioning refrigeration system work normally to bring you a cool breeze in the summer driving.

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